將type=-1的對象提到第一位：
let orglist = [//原數組
{name:a,type:0},
{name:b,type:1},
{name:c,type:-1},
]
orglist.forEach((item,idx)=>{
if(item.type == -1){
orglist.splice(idx,1)
orglist.splice(0,0,item)
}
})
console.log(orglist)得到
[//新數組
{name:c,type:-1},
{name:a,type:0},
{name:b,type:1},
]